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Cognomen Kozaruk (Kozaruk
) , throughout the world, is a very rare surname. The cognomen Kozaruk is habitual in Poland, where it is a very rare surname, Australia, and Spain. Measured by absolute frequency, it is commonest in Poland, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Kozaruk | Canada, Spain, Poland, Australia, United States |